/Engine/Source/Runtime/Engine/Public/LevelUtils.h
Returns whether the given package is part of the world server visible streaming levels or not.
True if the given package is referenced by one of the world server visible streaming levels, else False.
static bool IsServerStreamingLevelVisible ( [UWorld](API\Runtime\Engine\Engine\UWorld) * InWorld, const [FName](API\Runtime\Core\UObject\FName) & InPackageName )